论文标题
夸克集群扩展模型，用于解释有限-T晶格QCD热力学
Quark cluster expansion model for interpreting finite-T lattice QCD thermodynamics
论文作者
论文摘要
我们在有限温度下以夸克群集的扩展，以一种通用的贝丝·乌赫伦贝克（Beth-Uhlenbeck）方法的形式，使用普通的ANSATZ，采用通用的ANSATZ，对HADRONIC相移的形式提出了一种统一的方法，以有限的温度在有限温度下进行了有限温度。系统组成的变化从强子共振气体到夸克 - 胶状等离子体发生在狭窄的温度间隔$ 150-185 $ MEV的狭窄温度间隔中发生，由于手性对称性的恢复，Hadron的Mott Offiation tropping Hadros的分离是由降低的Quark质量触发的。 Polyakov Loop变量对夸克和Gluon自由度的解解，该变量标志着$ z（3）$中心对称的颜色$ su（3）$ qcd的中心对称性。我们建议使用$ \ MATHCAL {O}（α_S）$病毒校正并解决Polyakov Loop的热力学潜力（GAP方程）的平稳性条件。最终的压力与晶格QCD模拟非常吻合至高温。
We present a unified approach to the thermodynamics of hadron-quark-gluon matter at finite temperatures on the basis of a quark cluster expansion in the form of a generalized Beth-Uhlenbeck approach with a generic ansatz for the hadronic phase shifts that fulfills the Levinson theorem. The change in the composition of the system from a hadron resonance gas to a quark-gluon plasma takes place in the narrow temperature interval of $150 - 185$ MeV where the Mott dissociation of hadrons is triggered by the dropping quark mass as a result of the restoration of chiral symmetry. The deconfinement of quark and gluon degrees of freedom is regulated by the Polyakov loop variable that signals the breaking of the $Z(3)$ center symmetry of the color $SU(3)$ group of QCD. We suggest a Polyakov-loop quark-gluon plasma model with $\mathcal{O}(α_s)$ virial correction and solve the stationarity condition of the thermodynamic potential (gap equation) for the Polyakov loop. The resulting pressure is in excellent agreement with lattice QCD simulations up to high temperatures.
